GP Card Manager Failed - PyAPDU Tool

[filip1101]

I try to download cap file, install an applet and select it on PyAPDU Tool.
But i get these errors:
When i try to download cap i get this error:
Download Cap error: Select GP Card Manager failed. Send: 00 A4 04 00 00, Recv: 00 00.
When I try to install an applet I get this error:
Install Applet error: GP init update failed. recv: 00 00
And when i try to select an apllet i get this error as well
Select Applet error: global name 'util' is not defined
So can you tell me how to fix these errors
I am a beginner in Java so I dont really understand what GP is but i need this to be fixed fast
Is something wrong wrong with the reader or with the card or is it something else
I use ISO-14443A MIFARE Classic card 1k tag
And ACS ACR 122u reader

[Tolice]

You must install and select the applet after the CAP file has been successfully downloaded.

[happy123654]

perhapse, the card don't install the card manager. so you select the card manager failed and the other command(eg: init update ) will be failure,too.
You should study some specification. eg: GP special and the SCP(secure channel protocol) in the GP special.